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Relative ion expansion velocity in laser‐produced plasmas

 

作者: S. Goldsmith,   J. C. Moreno,   H. R. Griem,   Leonard Cohen,   M. C. Richardson,  

 

期刊: Journal of Applied Physics  (AIP Available online 1988)
卷期: Volume 64, issue 2  

页码: 581-585

 

ISSN:0021-8979

 

年代: 1988

 

DOI:10.1063/1.341945

 

出版商: AIP

 

数据来源: AIP

 

摘要:

The spectra of highly ionized titanium, Tixiiithrough Tixxi, and CviLyman lines were excited in laser‐produced plasmas. The plasma was produced by uniformly irradiating spherical glass microballoons coated with thin layers of titanium and parylene. The 24‐beam Omega laser system produced short, 0.6 ns, and high intensity, 4×1014W/cm,2laser pulses at a wavelength of 351 nm. The measured wavelength for the 2p‐3sTixiiiresonance lines had an average shift of +0.023 A˚ relative to the Cviand Tixxspectral lines. No shift was found between the Cvi, Tixix, and Tixxlines. The shift is attributed to a Doppler effect, resulting from a difference of (2.6±0.2)×107cm/s in the expansion velocities of Tixixand Tixxions compared to Tixiiiions.

 

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